Rep. Vicki Berger, R-Salem, announced Wednesday that she will not seek re-election, opening another Oregon House seat that could be hotly contested.

Berger spent the last 11 years in the Oregon Legislature, serving as co-chair of the House Revenue Committee in the 2011 session and in Republican leadership during the 2013 legislative session.

Berger’s seat, which represents parts of Salem and the cities of Monmouth and Independence is a swing district that narrowly voted for Barack Obama in 2012, with Berger’s exit, the control of the seat could be competitive even in an off-year election.

Democrats hold a roughly 838-voter registration edge over Republicans in the district.

Berger played a pivotal role in the expansion of the Oregon Bottle Bill in 2009, which was first spearheaded in 1971 by her father, Richard Chambers.

“Through two cycles of boom and bust economic conditions, I feel I have contributed much to our beloved Oregon by emphasizing conservative fiscal policies and practical problem solving,” Berger said in a statement. “I am not in any way putting aside my commitment to community, only refocusing in other areas.”

On Twitter, Rep. Jules Bailey, D-Portland, said Berger's exit from the Legislature was a "huge loss," and said he was proud to call her a mentor and a friend.

Another member of the House Revenue Committee which Berger sits on, Republican Jason Conger, is running a campaign for U.S. Senate, putting his Bend House District in heavy contention.